package risoe.syslab.fhnew.config;

/*
 * Copyright (c) 2012-2014, Technical University of Denmark (DTU)
 * All rights reserved.
 * 
 * The Flexhouse 2.0 platform ("this software") is licensed under the
 * BSD 3-clause license.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *   - Neither the name of DTU nor the names of its contributors may be used to
 *     endorse or promote products derived from this software without specific
 *     prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE TECHNICAL UNIVERSITY OF DENMARK BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;

import risoe.syslab.fhnew.common.SystemConstants;
import risoe.syslab.fhnew.common.SystemConstants.DeviceType;

@SuppressWarnings("serial")
public class ActuatorConfig extends AbstractIOConfig {

	public static final String ACTUATOR_TAG="actuator";
	private static final String STATE_ATTR="state";

	private double iniState;

	public String toString() {
		StringBuffer rv=new StringBuffer("ActuatorConfig \""+name+"\"");
		return rv.toString();
	}

	public static ActuatorConfig parse(Node in) {
		if ((in.getNodeType()==Node.ELEMENT_NODE) && (ACTUATOR_TAG.equals(in.getNodeName()))) {
			NamedNodeMap attrs=in.getAttributes();
			String an;
			double posx=0;
			double posy=0;
			boolean active;
			String at;
			String description = "";
			double iniState=0;

			Node _actuatorName=attrs.getNamedItem(NAME_ATTR);
			if (_actuatorName!=null) {
				an=_actuatorName.getNodeValue();
			}
			else {
				throw new IllegalArgumentException(ACTUATOR_TAG+": Missing '"+NAME_ATTR+"' attribute.");
			}

			Node _pos=attrs.getNamedItem(POS_ATTR);
			if (_pos!=null) {
				String posstr=_pos.getNodeValue();
				if (posstr.matches(POSPAIR_REGEX)) {
					String[] x12=posstr.split(",");
					posx=Double.valueOf(x12[0]);
					posy=Double.valueOf(x12[1]);
				}
			}
			else {
				throw new IllegalArgumentException(ACTUATOR_TAG+": Missing '"+POS_ATTR+"' attribute.");
			}

			Node _actuatorType=attrs.getNamedItem(TYPE_ATTR);
			if (_actuatorType!=null) {
				at=_actuatorType.getNodeValue();
			}
			else {
				throw new IllegalArgumentException(ACTUATOR_TAG+": Missing '"+TYPE_ATTR+"' attribute.");
			}

			Node _active=attrs.getNamedItem(ACTIVE_ATTR);
			if (_active!=null) {
				String activestr=_active.getNodeValue();
				if (activestr.equals("1") || activestr.equals("true") || activestr.equals("yes")) {
					active=true;
				}
				else if (activestr.equals("0") || activestr.equals("false") || activestr.equals("no")) {
					active=false;
				}
				else throw new IllegalArgumentException(ACTUATOR_TAG+": '"+ACTIVE_ATTR+"' attribute '"+activestr+"' needs to be '0' or '1'.");
			}
			else {
				throw new IllegalArgumentException(ACTUATOR_TAG+": Missing '"+ACTIVE_ATTR+"' attribute.");
			}

			Node _iniState=attrs.getNamedItem(STATE_ATTR);
			if (_iniState!=null) {
				try {
					iniState=Double.valueOf(_iniState.getNodeValue()).doubleValue();
				}
				catch (NumberFormatException e) {
					throw new IllegalArgumentException(ACTUATOR_TAG+": '"+_iniState.getNodeValue()+"' is not a valid number.");
				}
			}
			else {
				throw new IllegalArgumentException(ACTUATOR_TAG+": Missing '"+STATE_ATTR+"' attribute.");
			}

			// A description is not required
			Node _description=attrs.getNamedItem(DESCRIPTION_ATTR);
			if (_description!=null) {
				description=_description.getTextContent();
			}


			try{
				DeviceType type = SystemConstants.getDeviceType(at);
				ActuatorConfig ac = new ActuatorConfig(an,posx,posy,type,active,iniState, description);
				ac.parseInterface(in);
				return ac;
			}
			catch(IllegalArgumentException e){
				throw e;
			}
		}
		return null;
	}

	private ActuatorConfig(String name,double posx,double posy,DeviceType type,boolean active,double iniState, String description) {
		super(name,posx,posy,type,active, description);
		this.iniState=iniState;
	}

	public double getInitialState() {
		return iniState;
	}
}
